Words similar to ros
Example sentences for: ros
How can you use “ros” in a sentence? Here are some example sentences to help you improve your vocabulary:
Although the mechanism(s) by which cytokines induce apoptosis vary among cell types, it is presumed that it involves either an increase in reactive oxygen species (ROS) or activation of stress-related signaling pathways.
We suggest that one mechanism by which TNFα induces CLENDO cell death is through the formation of ROS, a result that may stem from depletion of GSH stores in CLENDO cells.
They also respond by the localized activation of a cell-death program, designated the hypersensitive response (HR), and by the systemic activation of cellular and molecular defenses, termed systemic acquired resistance (SAR) [ 1 2 3 4 5 6 7 ] . Second messengers that contribute to the development of the systemic response include reactive oxygen species (ROS), SA, JA and ethylene [ 8 9 10 ] . There is evidence for commonalities between plant responses to pathogens (referred to as defense responses) and environmental stresses (referred to as stress responses) [ 11 12 ] . Despite similarities, however, a plant's response to each environmental challenge is unique and tailored to increasing the plant's ability to survive the inciting stress [ 13 14 15 16 ] .
We used ozone as an abiotic stressor because the plant's response at the biochemical and molecular level shows extensive overlap with the pathogen defense response and includes the production of ROS, as well as induction of HR and SAR [ 23 24 ] . At the phenotypic level, acute ozone exposure (high dose for a short interval) causes necrotic lesions similar to those caused by avirulent pathogen infections, whereas chronic ozone exposure (low dose for an extended period of time) accelerates foliar senescence, producing similar symptoms to those caused by virulent pathogen infections [ 25 26 ] . There is evidence that elicitor-evoked ROS production, called the oxidative burst, is an essential signaling component of the defense response [ 27 ] . Moreover ozone is a component of photochemical smog and itself represents an oxidative stress to living organisms, damaging crops and forests [ 28 ] .
Abscisic acid response elements (ABREs) are important during the plant's response to abiotic stresses such as dehydration, salinity and cold, all of which are ABA-mediated [ 82 83 ] . There is evidence that ROS are involved in ABA signaling [ 84 ] . The enrichment of the ABRE motif in the promoter sequences of the genes in the stress cDNA collection may reflect crosstalk among stress signaling pathways mediated by common second messengers, such as H 2 O 2 . The over-representation of the SA-inducible element in the promoter sequences of the genes in the stress cDNA collection, especially those in the SA library, further validates the enrichment of the stressor-specific genes using the SSH technique and suggests that these genes may be regulated by the changes in the levels of SA that occurs in stress responses [ 85 ] .
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